In a Dihybrid Cross,what Is the Probability That the Offspring

question 43

Multiple Choice

In a dihybrid cross,what is the probability that the offspring will exhibit both of the dominant phenotypes?

• A) 1/16.
• B) 3/16.
• C) 6/16.
• D) 9/16.
• E) 1.

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Definitions:

Pseudocoelom

Body cavity lying between the digestive tract and body wall that is incompletely lined by mesoderm.

Tube-Within-a-Tube

A design characteristic of the body plans of many animals, where the outer tube represents the body wall, and the inner tube represents the alimentary canal or gut.

Flukes

Parasitic flatworms that infect the liver, lungs, and other organs of their hosts, with life cycles involving one or more intermediate hosts.

Oral Sucker

A muscular structure found in some animals, such as parasitic worms, used for attachment to or ingestion of food from hosts or surfaces.